/* Oudy — oudy.app
   One page, two files, no third-party requests. A site for self-hosted
   software should not fetch a font from somebody else's server. */

:root {
  --bg:        #fbfbfa;
  --surface:   #ffffff;
  --text:      #15171c;
  --muted:     #5c6270;
  --faint:     #878d9b;
  --line:      #e3e3e0;
  --line-soft: #eeeeeb;
  --accent:    #9c4517;
  --accent-bg: #fdf3ec;
  --done:      #1f6b3f;
  --done-bg:   #edf6f0;

  --measure: 66ch;
  --page: 1080px;
  --radius: 10px;

  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
          "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:        #101216;
    --surface:   #161920;
    --text:      #e8e9ec;
    --muted:     #a2a8b5;
    --faint:     #7d838f;
    --line:      #272b34;
    --line-soft: #1e222a;
    --accent:    #f0a06a;
    --accent-bg: #241a13;
    --done:      #6fce9a;
    --done-bg:   #142118;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  width: 100%;
  max-width: var(--page);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2.5rem);
}

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem; top: 1rem;
  z-index: 10;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: .5rem .75rem;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

code {
  font-family: var(--mono);
  font-size: .9em;
  background: var(--line-soft);
  padding: .1em .35em;
  border-radius: 4px;
}

/* ---- bars ---- */

.bar {
  border-bottom: 1px solid var(--line);
}
footer.bar {
  border-bottom: 0;
  border-top: 1px solid var(--line);
  margin-top: 4rem;
}
.bar-inner {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
  align-items: baseline;
  justify-content: space-between;
  padding-block: 1rem;
  font-size: .92rem;
  color: var(--muted);
}
.mark {
  font-weight: 620;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--text);
}
.bar nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.bar nav a {
  color: var(--muted);
  text-decoration: none;
}
.bar nav a:hover { color: var(--accent); text-decoration: underline; }

/* ---- hero ---- */

.hero {
  padding-block: clamp(3rem, 9vw, 6rem) clamp(2rem, 5vw, 3.5rem);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin: 0 0 1.5rem;
  padding: .25rem .7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: .82rem;
  letter-spacing: .02em;
  color: var(--muted);
}
.dot {
  width: .45rem; height: .45rem;
  border-radius: 50%;
  background: var(--accent);
}

h1 {
  margin: 0;
  font-size: clamp(2.4rem, 6.5vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-weight: 640;
  max-width: 16ch;
}

.lede {
  margin: 1.5rem 0 0;
  max-width: var(--measure);
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
  line-height: 1.5;
  color: var(--text);
}

.sub {
  margin: 1rem 0 0;
  max-width: var(--measure);
  color: var(--muted);
}

.figures {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 2.5rem;
  margin: 2.5rem 0 0;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
  font-size: .9rem;
  color: var(--faint);
}
.figures b {
  display: block;
  font-size: 1.35rem;
  font-weight: 620;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* ---- cards ---- */

.cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  padding-block: 1rem 3.5rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.card h2 {
  margin: 0 0 .6rem;
  font-size: 1.02rem;
  font-weight: 620;
  letter-spacing: .01em;
}
.card p {
  margin: 0;
  font-size: .95rem;
  color: var(--muted);
}

/* ---- prose ---- */

.prose {
  padding-block: 1.75rem;
  max-width: calc(var(--measure) + 2 * clamp(1.25rem, 5vw, 2.5rem));
  margin-inline: auto;
}
.prose h2 {
  margin: 2rem 0 .75rem;
  font-size: 1.45rem;
  line-height: 1.25;
  letter-spacing: -0.015em;
  font-weight: 620;
}
.prose > h2:first-child { margin-top: 0; }
.prose p { margin: 0 0 1rem; }
.note {
  color: var(--muted);
  font-size: .93rem;
  border-left: 2px solid var(--line);
  padding-left: 1rem;
}

.wont {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}
.wont li {
  padding: .8rem 0;
  border-bottom: 1px solid var(--line-soft);
  color: var(--muted);
}
.wont b { color: var(--text); font-weight: 600; }

/* ---- the flow diagram ---- */

.flow {
  margin: 1.5rem 0 1.5rem;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  gap: 1.25rem;
}
.flow .row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .6rem;
}
.node {
  display: inline-block;
  padding: .35rem .7rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  font-family: var(--mono);
  font-size: .82rem;
  white-space: nowrap;
}
.node.strong {
  border-color: var(--accent);
  background: var(--accent-bg);
  color: var(--accent);
}
.arrow {
  flex: 0 0 1.75rem;
  height: 1px;
  background: var(--line);
  position: relative;
}
.arrow::after {
  content: "";
  position: absolute;
  right: -1px; top: -3px;
  border-left: 5px solid var(--line);
  border-block: 3.5px solid transparent;
}
.arrow.long {
  flex: 1 1 6rem;
  min-width: 5rem;
}
.arrow em {
  position: absolute;
  inset-inline: 0;
  bottom: .4rem;
  text-align: center;
  font-style: normal;
  font-size: .72rem;
  letter-spacing: .03em;
  color: var(--faint);
}
.leaves {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

/* ---- state table ---- */

.state {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.25rem;
  font-size: .95rem;
}
.state th, .state td {
  text-align: left;
  vertical-align: top;
  padding: .85rem 1rem .85rem 0;
  border-bottom: 1px solid var(--line-soft);
}
.state tr:first-child th, .state tr:first-child td { border-top: 1px solid var(--line-soft); }
.state th { font-weight: 600; white-space: nowrap; }
.state td { color: var(--muted); }
.state td:last-child { padding-right: 0; text-align: right; white-space: nowrap; }

.tag {
  display: inline-block;
  padding: .1rem .55rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: .78rem;
  letter-spacing: .02em;
  color: var(--faint);
}
.tag.done   { color: var(--done);   border-color: transparent; background: var(--done-bg); }
.tag.next   { color: var(--accent); border-color: transparent; background: var(--accent-bg); }

@media (max-width: 34rem) {
  .state th, .state td { display: block; padding: .25rem 0; border: 0; }
  .state tr { display: block; padding: .85rem 0; border-bottom: 1px solid var(--line-soft); }
  .state tr:first-child th, .state tr:first-child td { border-top: 0; }
  .state td:last-child { text-align: left; padding-top: .5rem; }
}